That would be more like , "your honor we were in bed and it turned out it was a man with full pieces, and I badly reacted with emotion , disgust and rage".
It does not make it acceptable at all, but it explains it, and it is a high risk of reaction if you outright lie to somebody you are getting intimate with. Love and sex are not exactely a rational stuff, and violent reaction CAN be expected. There is a reason crime of passion is a term, sudden rage.
So you can either outright lie as a TG and risk that, or you can be honest and tell it before this come to this point.
What we should be discussing is how long before it should be told, and NOT whether this should be told.